I‘m using a ASUS 27" OLED - ROG Swift PG27AQWP-W set to 500 true black, VRR off, Auto-HDR off, no RTX HDR. I‘m also using a DP 2.1 so there‘s enough bandwidth. My pictures show the Witcher 3. First picture should show the split in the middle of the screen that makes one side have darker blacks. Second and third picture show the difference in brightness of the flickering. Flicker every 0.5 seconds. The flickering is ONLY in the menu but the split is there all the time. Strangely if I open the OSD of the monitor everything looks perfect. So I‘m guessing the problem lies in windows. I also tested KCD 2 and I have the same problem there. I connected the monitor to my ps5 too and it looked perfectly fine. It drives me nuts and I would be grateful for any kind of idea to solve this.